Double-grinding



in, Model.) 2 Sheets-Sheet 1.

J. A. BERRILL DOUBLE GRINDING PAINT MILL.

No. 321,675. Patented July 7. 1885.

WITNESSES INVENTOR (No Modal.) 2 sheets-sheet, z.

J. A. BERRILL. DOUBLE GRINDING PAINT MILL.

Patented July 7', 1885.

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ATTORNEYS.

WITNESSES linrrsn Srarns Parnsf'r @rrrcn.

JOHN A. BERRILL, OF \VATERVILLE, NEW YORK.

DOUBLE-GRINDING PAlNT=MiLL.

EJPECIFIGATION icrming part of Letters Patent No. 321,675, dated July 7, 1885.

Application liled June 5, 1884. (K model.)

To all whom it may concern.-

Be it known that 1, JOHN A. BERRILL, of .Vaterville, in the county of Oneida and State of New York, have invented a new and useful Improvement in Double-Grinding Paint-Mills,

of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of my improve ment, partly in section, and part being broken away. Fig. 2 is an under side viewof the runner, parts being broken away. Fig. 3 is a plan view of the shaft and driver. Fig. 4 is a plan view of the mill, part being broken away. Fig. 5 is a plan view of the lower hopper and the spider for supporting the upper shaft, the shaft being shown in section. Fig. 6 is a plan View of the bar for supporting the lower shaft, the shaft being shown in section.

The object of this invention is to promote convenience in double-grinding paints, and economize space in setting up paint-mills and labor in attending them.

The invention relates to a double-grinding paint-n1ill constructed with two or more mills 5 by the upper mill will be supported by and securely connected with the lower mill. The lower end of the shaft of the upper mill is squared, and fits into a square socket formed upon the runner of the lower mill, whereby the said shaft will be driven by the said runner, as will be hereinafter fully described and claimed.

A represents the frame of the lower mill, which is made and secured to the bench or table in the ordinary manner.

B is the stationary grinder, which is made in one piece with the hopper O, and is provided with lugs or arms D, to rest upon the upper ends of the posts of the frame A, where they are secured by bolts E and hand-nuts F. Beneath the stationary grinder B is placed the runner G, which has a socket-bearing, H, in the center of itslower or concaved side, to receive the uppercnd oftheshaft I. Upon thelowerside of the runner G, near the bearing H, are formed recessed lugs or flanges J, to receive the driver K, attached to the shaft I near its upper end. The shaft I revolves in bearings in the frame A, and its lower end rests and revolves in a socket-bearing in a bar, L, suspended by bolts M and hand-nuts N from the frame A, so that by turning the said nuts N the shaft I can be raised and lowered to adjust the runner G closer to or farther from the stationary grinder B, as may be desired. To the lower part of the shaft I is attached a beveled gear-wheel, O, with which engages a beveled gear-wheel, I, attached to the shaft- Q.. The shaft Q is provided with a fast pulley, R, and a loose pulley, S, to receive a belt from any convenient power.

.T is the frame of the upper mill, the base of which rests upon the top of the hopper G, and is provided with downwardly-projecting lugs U, having screw-holes to receive the handscrews V. The forward ends of the handserews V rest against the-sides of the hopper O, and thus secure the frame T in place.

N is the stationary grinder of the upper mill, which is provided with a hopper, X, and with lugs Y, and is secured to the frame T by screws Z and hand nuts a in the same manner as in the lower mill. The runner b of the upper mill is connected with its shaft 0 by a hearing, recessed lugs, and a driver in the same manner as in the lower mill; but the connection is not shown in the drawings. The shaft 0 revolves in bearings in the frame T, and has a shoulder, (1, formed upon it a little below the base of the said frame, which shoulder rests upon the spider 6, connected with and supported from the base of the said frame T by bolts f and hand-nuts g, so that the said shaft can be readily raised and lowered to adjust its runner b at any desired distance from the stationarygrinder \V. The lower end of the shaft 0 is squared to fit into a square socket, 71, formed upon the upper side of the center of the lower runner, G, so that the shaft 0 and the upper runner b will be driven from the lower runner, G.

To a post of the frame T is attached the end of a curved plate, 73, the other end of which rests against the edges of the runner b and the stationary grinder W, to scrape off the paint as it issues from between the said runner and grinder and cause it to fall into the hopper C, so that the paint will receive a second grinding without being handled. A similar scraper, j, is attached to apost of the frame of the lower mill, to scrape off the paint as it issues from between the runner G and grinder B, and cause it to fall into some suitable receiver.

If desired, a third mill can be placed above and secured to the second mill, so that the paint can receive a triple grinding without being handled.

Having thus described my invention, Iclaim as new and desire to secure by Letters Patent 1. In a double-grinding paint-mill, the combination, with a lower mill, of an upper mill supported upon and detachably secured to the hopper of the lower mill, and having its shaft connected with and driven from the runner of 0, having. shoulder (Z, and fitting the socket of a the runner G, substantially as herein shown and described.

JOHN A. BERRILL. Witnesses:

A. O. OSBORN, GEO. W. BERRILL. 

